best review so far
first of all thank you for testing my game
answering your questions :
1. there is no hard or easy mode it just one game setting that makes it hard and that is speed of object you have small window to react to incoming obstacles and enemies so you would need to jump and crouch early and not wait for objects to get close .
2.music it just a rushed thing i had little time left to publish the game so i choose the most generic music no copyright you can find out there didn't pay much attention to it .
3. some enemies track player aggressively and when killed they give you 100+ point so they help you with reaching max score you can get. reason why added enemies is to prevent player from camping in corners guns are there to help you counter enemy "E" to use weapons .
4.when player is middle of air you can press "S" key or "Down" arrow key to quickly bring player down from air